Hello, in P21, FFT swaps the axes around so Y will be the slowest changing axis i.e. along W in the Patterson, I think.
How many atoms are in your model? Very hard to be sure it's not working as the Patterson is so very convoluted with a large model. Cheers, Jon.C. Sent from ProtonMail mobile -------- Original Message -------- On 21 Jun 2022, 14:11, fuxingke wrote: > In ccp4, I can use "Generate Patterson Map" to generate Patterson map in "Map > & Mask Utilities". But, I found a serious problem. When I use a set of data > with spacegroup P21 and the position of atom is kown, the length of w-axis in > the Patterson map is not equal to cell parameters c. What's more, the > position of Patterson peaks are also different from the interatomic vectors. > The parameter is as below. > Why the Patterson map is different? How can I avoid this problem？Is there any > other better method to calculate the Patterson map? > > I'm looking forward to your reply. > > Regards > > Best wishes, > > Fu Xingke > > Institute of Physics CAS > > --------------------------------------------------------------- > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
